Speaker advive/opinions
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Cruiser
Joined: Jan 2011
Posts: 114
Likes: 1
From: lebanon
Speaker advice/opinions
I'm partial to Polk db series speakers but I see quite a few members on this forum like the J&M speakers.I'm looking at upgrading the audio system on my '09 FLHTCU. Had another bike with Polk speakers and they rocked, had real hard hitting bass and were crystal clear. Was wondering if anyone here has had tried both and if there's any noticable difference.
Last edited by hevis1; May 25, 2013 at 10:13 AM.
Extreme HDF Member
Joined: Sep 2010
Posts: 14,744
Likes: 402
From: Phoenix '53, '88, '09 Big Twins
I have the J&M 7.25's
they are junk
the frequency response is uneven and the speakers easily distort.
I had asked J&M for detailed spec sheets* and they declined...so my fault for going ahead with the purchase.
I work with pro-audio and knew that without complete specifications I could be making a mistake.
Mike
* specifically speaker efficiency expressed in dB/1 watt/1 meter. and frequency response charts.
ps J&M are welcome to defend themselves....
they are junk
the frequency response is uneven and the speakers easily distort.
I had asked J&M for detailed spec sheets* and they declined...so my fault for going ahead with the purchase.
I work with pro-audio and knew that without complete specifications I could be making a mistake.
Mike
* specifically speaker efficiency expressed in dB/1 watt/1 meter. and frequency response charts.
ps J&M are welcome to defend themselves....
Last edited by mkguitar; May 25, 2013 at 01:51 PM.
Elite HDF Member
Joined: Jul 2007
Posts: 4,749
Likes: 16
From: sand mountain Alabama
Polk speakers are a good choice.
I have been using automotive speakers for years with no ill effects.
problem may be finding 2 ohm speakers.
However, you can use 4ohm speakers. You will lose some volume but not much.
You can go up in ohms but not down.
I have been using automotive speakers for years with no ill effects.
problem may be finding 2 ohm speakers.
However, you can use 4ohm speakers. You will lose some volume but not much.
You can go up in ohms but not down.
Cruiser
Joined: Nov 2006
Posts: 241
Likes: 2
From: Bristol TN
I replaced J&M Rockers in my RG with the MM651 Polks and now have the MM6501's and they both kill the Rockers. I am running a RF PBR300x2 and the mm6501's and can set the amp to HP and set the cross over to 50hz and run the bass on the head unit all the way up and have good bass and clear as a bell. With the rockers anything below 100hz they could not handle it.
Intermediate
Joined: Jan 2013
Posts: 45
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From: Fort Lee, VA
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Road Warrior
Joined: May 2008
Posts: 1,802
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From: Salt Lake City, UT. Dushore, Pa.
I replaced J&M Rockers in my RG with the MM651 Polks and now have the MM6501's and they both kill the Rockers. I am running a RF PBR300x2 and the mm6501's and can set the amp to HP and set the cross over to 50hz and run the bass on the head unit all the way up and have good bass and clear as a bell. With the rockers anything below 100hz they could not handle it.
Tx
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If are using the MM651, you can source adapter rings through cycle visions or dragonfly. You can also find them on ebay, eglidegoodies and a bunch of other places. Once you have the adapter rings, it's a simple install of the speakers- the only extra step (besides removing the factory junk and installing the mounting ring then the speakers) is the crossovers for the MM651s are a separate box, so you have to mount them behind the horizontal brace. Extra couple minutes of work, and worth it. You'll also want to power those speakers with an amp...the HK deck is, umm, lacking power, to say the least! Check the Audio Forum on here- chock full of information, and the main Moderator in there, UltraNutz, is EXTREMELY helpful!